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100 mL of 0.02 M benzoic acid (pK(a)=4.2...

100 mL of 0.02 M benzoic acid `(pK_(a)=4.20)` is titrated using 0.02 M NaOH, pH after 50 mL and 100 mL of NaOH have been added are:

A

`2.1,8.1`

B

`4.2,7`

C

`4.2,8.1`

D

`4.2,8.5`

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RESONANCE ENGLISH-IONIC EQUILIBRIUM-Exercise 1 part 2 only one option correct type
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